:root{--color-bg: #0f172b;--color-bg-surface: #17223b;--color-bg-elevated: #1f2d4a;--color-bg-hover: #2a3e63;--color-nav: #243450;--color-nav-hover: #33486d;--color-nav-active: #2e74b5;--color-nav-active-bg: #2a4c7e;--color-text: #e8eef7;--color-text-secondary: #9fb3d2;--color-text-muted: #6b88b3;--color-text-disabled: #5a77a0;--color-primary: #2e74b5;--color-primary-hover: #3d8be0;--color-primary-subtle: rgba(46, 116, 181, .12);--color-accent: #ffb74d;--color-success: #27ae60;--color-success-bg: rgba(39, 174, 96, .12);--color-warning: #d97706;--color-warning-bg: rgba(217, 119, 6, .12);--color-danger: #dc2626;--color-danger-bg: rgba(220, 38, 38, .12);--color-info: #2e9bd6;--color-info-bg: rgba(46, 155, 214, .12);--color-neutral: #6c7a92;--color-neutral-bg: rgba(108, 122, 146, .12);--color-border: #2a4468;--color-border-strong: #3b5a80;--sidebar-width: 260px;--sidebar-width-collapsed: 72px;--topbar-height: 56px;--radius: 10px;--radius-sm: 6px;--shadow-card: 0 6px 18px rgba(0, 0, 0, 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